HEALTHY LIVING THE LATEST RESEARCH
Vitamin D Helps Brains Function Better
I
n the first study to examine levels of vitamin D in brain tissue, researchers at Tufts University found that higher levels of vitamin D correlated with better cognitive function. While many studies have found that vitamin D is important for cognitive health, all were based on either dietary intakes or blood levels of vitamin D. “We wanted to know if vitamin D is even present in the brain, and if it is, how
these concentrations are linked to cognitive decline,” said Kyla Shea, Ph.D. The researchers analyzed the brain tissue of deceased men and women whose cognitive function had been periodically assessed during a long-term study on Alzheimer’s. By looking at four regions of the brain — two
associated with changes linked to
Alzheimer’s, one associated with forms of dementia linked to blood fl ow, and one region without any known associations with cognitive decline — they found that vitamin D was indeed
present in brain tissue, and high vitamin D levels in all four regions of the brain correlated with better cognitive function.
Supplements Benefit Heart Health A
new meta-analysis of 884 studies, published in the Journal of the American College of Cardiology, evaluated 27 diff erent antioxidant supplements and found that several micronutrients — including omega-3 fatty acid, folic acid, and coenzyme Q10 — reduced cardiovascular risk. The study found strong evidence that omega-3 fatty acid decreased mortality from cardiovascular disease, folic acid reduced stroke risk, and coenzyme Q10 reduced overall mortality. Omega-6 fatty acid, L-arginine, L-citrulline, vitamin D, magnesium, zinc, alpha-lipoic acid, melatonin, catechin, curcumin, flavanol, genistein, and quercetin also reduced cardiovascular risk. But vitamin C, vitamin E, and selenium showed no benefits to cardiovascular disease, and beta carotene supplements increased all-cause mortality.
88 NEWSMAX MAXLIFE | APRIL 2023
VITAMIN D3 MAY REDUCE SKIN CANCER RISK
Arsenic is present in much of the world’s drinking water and can cause a variety of cancers, including skin cancer. But a lab study published in the American Journal of Cancer Research found that calcitriol, which is also known as activated vitamin D3, inhibits skin cancer caused by arsenic. For the study, epidermal skin cells were exposed to arsenic. When the cells were then treated with increasing doses of calcitriol, the arsenic levels decreased significantly. In other research, calcitriol (which is only available by prescription)
suppressed the production of arsenic- induced tumors in human lung epithelial cells by up to 70%.
COVID-19: VACCINE PROTECTS AGAINST REINFECTION People who have previously been infected
with COVID-19 still benefit from vaccination, says a study published in PLOS Medicine. For men and women previously infected with COVID-19, vaccination off ered up to 71% protection against reinfection during the alpha period, 94% during the delta period, and 60% during the omicron period.
AGING: FOOTBALL PLAYERS AGE FASTER Former professional football
players are more likely than nonplayers to develop diseases associated with advanced age when significantly younger, according to a study published in the British Journal of Sports Medicine. Researchers found that the former athletes tended to experience Alzheimer’s disease, arthritis, hypertension, and diabetes earlier than the general population, and that the health of former NFL players most closely resembled men a decade older.
DIABETES: WALKING LOWERS RISK Researchers at Vanderbilt University Medical
Center found that the more steps a person takes, the lower their risk of developing Type 2 diabetes. A four-year study of 5,677 participants found that those whose average daily step count was 10,700 were 44% less likely to develop Type 2 diabetes than those who took 6,000 steps.
HEART: SHINGLES LINKED TO HEART ATTACK, STROKE People who develop shingles, an infection
caused by the same virus as chickenpox and resulting in a painful rash, increase their odds of having a heart attack or stroke by nearly 30%, according to a study published in the Journal of the American Heart Association. The elevated risk may persist for 12 or more years. “Shingles vaccination could provide a valuable opportunity to reduce the burden of shingles and reduce the risk of subsequent cardiovascular complications,” said lead author Sharon Curhan, M.D.
VACCINE/KHON SUPAN/SHUTTERSTOCK / WOMAN/
KRAKENIMAGES.COM/SHUTTERSTOCK VITAMIN D/NORTONGO/SHUTTERSTOCK / FOOTBALL/MASTER1305/SHUTTERSTOCK
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